E6581299c
- 11 -
(6) The installation of the device driver starts.
On completion of the installation, the window shown below appears. Then, click [Finish].
Do not eject the floppy disk yet, because the USB port driver will be installed next.
(7) Then, the USB port driver is installed automatically and the installation of all necessary
drivers is completed.
The COM port number is needed for communications with the inverter. So, check on the COM port
number, following the same steps described in chapter 3.

2.3. Uninstalling the device driver

* To uninstall the device driver, click “Start” button on Windows, clic k “Control Panel” in start menu
and turn on “Add/Remove Programs”. In the program list that appeared, select “USB Serial
Converter Driver” and then click [Change/Remove].
When the uninstaller starts, check to make sure that the conver sion unit is not connected, and
then click “Continue.”
Warning
Mandatory
Do not uninstall a device driver where this option is connected with your computer.
Otherwise, abnormalities may be caused to your computer.